A change in how often you blink might be a sign of a health issue, such as dry eye disease or even Parkinson’s disease.
Q: I feel like I’m blinking more often than usual. What can blinking tell me about my health? And why do we blink?We blink about once every three to five seconds and usually don’t even realize it’s happening, despite losing an incredible amount of our daily visual input to blinking —Blinking serves several practical purposes: It wets and cleans the surface of the cornea and can reflexively protect the eye from rapidly approaching objects. But that’s not quite the end of the story.
If you plan on spending hours in front of your computer, set 20-minute timers to step away for a minute or two from your screen. I also like the concept of “” — closing your eyes for brief, deliberate breaks in your workday when you actually don’t need to have them open, such as during a telephone call or while waiting for a program to load.
Studies have shown that increased spontaneous blinking can be a sign of gathering new information — especially when it challenges the “rules” of a known environment. For instance, babiesblink more rapidly as they switch between hearing different languages spoken, which correlates to signaling in areas of the brain governed by dopamine.
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